How to repair Vaillant Turbomax , any boiler with the Right Mindset

This is a short video showing a Vaillant Turbomax, that on arrival had not worked for 6 weeks or more. I took the challenge and began to go thru a general service / diagnosis of what the probable causes could be, with the years of experience of these boilers. In the video it shows comprehensive tests that I carried out inc Electrode and expansion vessel and many visual checks that may or may not have been Spoken in the video for safety sake. You should ONLY work on Gas Appliances if You ARE GAS-SAFE registered it is against the Law to work on one if you are not A competent person. The information here is for New candidates in the industry and general Entertainment purposes. I hope you like and support the channel by watching more videos and maybe liking the Videos.